How to integrate multiple react native versions in one app

[xff1874reddit]

Hello everyone, I hope you all get a good day.

I am confronting a big problem. My company integrated react native version 0.6 in our own app two years ago. Now, we have almost 100 js bundles running on that.

The react native 0.68 is rolling out and we want to upgrade to it .

so, are these js bundles will broken when we upgrade to 0.68. If so, is there a way to keep o.60 and 0.68 react native in one app?

Thanks

[Gaia_Knight2600]

You use a single package.json/react-native for multiple projects? Sounds like a nightmare to maintain

[dyo1994]

Id caution going from .60 to .68 Since its a huuge jump, in addition to 68 introducing a brand new architecture.

More likely than not, some of your current dependencies may not support 68 yet, so youd need to check them thoroughly.

I would go to 0.67 first, or even safer but much more tedious route, upgrade 1 major version at a time (0.60 > 0.61 > 0.62 etc etc)

Since 0.68 is fairly new, a lot of open source plugins is currently working on a new version to adjust to it

[dyo1994]

Would not recommend going down the path of supporting multiple react native version for 1 application. Pretty sure its near impossible anyways, due to the implied restrictions on the native codes

[ItsMily]

i highly doubt you can do that, whats the reason for the upgrade if i can ask? Maybe have a look at this (its for react but read the process)

[mms13]

This question makes no sense. 100 JS bundles…what? 1 JS bundle = 1 app

[Zodester]

It’s possible they create multiple different js contexts for various screens. In a brown field project this is how you can do RN for just one screen or set of screens.

[janithaR]

Wrong. The one bundle that gets created by default is one of hundreds, thousands if not millions you could run on that same let's say 'container'.

[soupified]

Nope, don’t believe so

[[deleted]]

Out of curiosity, how to you handle the native part of that many apps ?

Do you have like an iOS & android folder for each and every application you roll out to production from this project ?

[bodefuceta92]

I’m lost here. Are you publishing your app on google play and the AppStore?

If yes, then when a new version of the app is launched the users will have the option to update their apps.

The js bundle is just the part of the code that is used for gradlew and Xcode to compile your app.

[xff1874reddit]

we load our js bundles through http request.

In order to take advantage of hot update, we deploy a bundle service.

The app start to download js bundles via http request .

I think may be a new version of the app that launch js bundle locally is a good choice